be active in conversations and show that you are engaged and always listening when she's talking. don't try to finish her sentences or cut her off saying that you know what she's trying to say. have LOTS of patience because some days we may not stutter at all and others we stutter every other word don't being as much attention to it. she already knows that she stutters do there's no reason to constantly bring it up if it's something she's insecure about, reassure her basically just treat her as if she was any other person and don't point out small things like that.